#!/bin/bash
#  _____               _           _
# |   __|___ ___ ___ _| |___ _____| |_ ___ ___ ___
# |   __|  _| -_| -_| . | . |     | . | . |   | -_|
# |__|  |_| |___|___|___|___|_|_|_|___|___|_|_|___|
#
#                              Freedom in the Cloud
#
# Command to create app templates
#
# License
# =======
#
# Copyright (C) 2018 Bob Mottram <bob@freedombone.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

PROJECT_NAME='freedombone'

app_name='noapp'
app_name_lower=$(echo "${app_name}" | tr '[:upper:]' '[:lower:]')
app_name=$app_name_lower
app_name_upper=$(echo "${app_name}" | tr '[:lower:]' '[:upper:]')
app_repo=
app_repo_commit='TODO'
app_php=
app_node=
app_nodeapp=
app_onion_only=
app_port=
app_port_internal=
app_daemon=
app_dir=
app_webui=1
your_name=''
your_email=''
SHOW_ON_ABOUT=1
database_type=''
debian_packages=
snap_packages=

function show_help {
    echo ''
    echo $"${PROJECT_NAME}-template --app [myappname] --php yes -n \"My Name\" -e \"myname@mydomain\" > src/${PROJECT_NAME}-app-myappname"
    echo ''
    echo $'Creates a new app script which can then be filled in'
    echo ''
    echo ''
    echo $'  -h --help                                   Show help'
    echo $'  -a --app [name]                             Name of the application'
    echo $'  -n --name [name]                            Your name'
    echo $'  -e --email [address]                        Your email address'
    echo $'  -r --repo [url]                             Git repo url for the app'
    echo $'  -c --commit [hash]                          Git commit'
    echo $'     --port [number]                          Port number for the app'
    echo $'     --portinternal [number]                  Internal port between a daemon and the web server'
    echo $'     --node [yes|no]                          Is this a nodejs app?'
    echo $'     --nodeapp [package]                      Specify a nodejs package to install'
    echo $'  -o --onion [yes|no]                         Is this app only available on an onion address?'
    echo $'  -p --php [yes|no]                           Is this a PHP app?'
    echo $'     --packages [list of deb package names]   Debian packages to be installed'
    echo $'     --snaps [list of snap package names]     Snap packages to be installed'
    echo $'  -s --daemon [yes|no]                        Add a daemon'
    echo $'  -d --database [mariadb|postgresql|mongodb]  Type of database'
    echo $'  -w --web [yes|no]                           Whether there is a web user interface (default is yes)'
    echo $'     --dir [directory]                        Where to install to'
    echo $'  -i --internalport [number]                  Internal port number for the daemon'
    echo ''
    exit 0
}

while [ $# -gt 1 ]
do
    key="$1"

    case $key in
        -h|--help)
            show_help
            ;;
        -a|--app|--appname)
            shift
            app_name="$1"
            app_name_lower=$(echo "${app_name}" | tr '[:upper:]' '[:lower:]')
            app_name=$app_name_lower
            app_name_upper=$(echo "${app_name}" | tr '[:lower:]' '[:upper:]')
            ;;
        -r|--repo)
            shift
            app_repo="$1"
            ;;
        -c|--commit)
            shift
            app_repo_commit="$1"
            ;;
        -n|--name)
            shift
            your_name="$1"
            ;;
        -e|--email)
            shift
            your_email="$1"
            ;;
        -d|--database)
            shift
            database_type="$1"
            ;;
        -i|--internal|--internalport)
            shift
            app_port_internal="$1"
            ;;
        -p|--php)
            shift
            app_php="$1"
            ;;
        --node|--nodejs)
            shift
            app_node="$1"
            ;;
        --nodeapp)
            shift
            app_nodeapp="$1"
            ;;
        -s|--daemon|--systemd)
            shift
            if [[ "$1" == 'yes' ]]; then
                app_daemon=1
            fi
            ;;
        -o|--onion)
            shift
            if [[ "$1" == 'yes' ]]; then
                app_onion_only=1
            fi
            ;;
        -w|--web)
            shift
            if [[ "$1" == $'n'* || "$1" == $'N'* ]]; then
                app_webui=
            fi
            ;;
        --port)
            shift
            app_port="$1"
            ;;
        --portinternal|--portint)
            shift
            app_port_internal="$1"
            ;;
        --dir)
            shift
            app_dir="$1"
            ;;
        --packages|--package)
            shift
            debian_packages="$1"
            ;;
        --snaps|--snap)
            shift
            snap_packages="$1"
            ;;
        *)
            # unknown option
            ;;
    esac
    shift
done

if [[ "$app_name" == 'noapp' ]]; then
    show_help
    exit 1
fi

if [[ "$app_name" == *' '* ]]; then
    echo $'app name should not contain any spaces'
    exit 2
fi

if [[ "$app_name" == *'_'* ]]; then
    echo $'app name should not contain any underscore characters'
    exit 3
fi

if [[ "$app_name" == *'-'* ]]; then
    echo $'app name should not contain any hyphen characters'
    exit 4
fi

if [ ${#app_name} -lt 3 ]; then
    echo $'app name should be at least three characters'
    exit 5
fi

if [ ${#your_name} -lt 2 ]; then
    echo $'Specify your name with --name'
    exit 6
fi

if [ ${#your_email} -lt 3 ]; then
    echo $'Specify your email address with --email'
    exit 7
fi

if [[ "$your_email" != *'@'* ]]; then
    echo $"That doesn't look like an email address"
    exit 8
fi

if [ "$app_nodeapp" ]; then
    app_node='yes'
fi

if [ ! $app_webui ]; then
    if [ ! "$app_dir" ]; then
        app_dir=/etc/${app_name}
    fi
    app_php=
fi

echo '#!/bin/bash'
echo '#'
echo '#  _____               _           _'
echo '# |   __|___ ___ ___ _| |___ _____| |_ ___ ___ ___'
echo '# |   __|  _| -_| -_| . | . |     | . | . |   | -_|'
echo '# |__|  |_| |___|___|___|___|_|_|_|___|___|_|_|___|'
echo '#'
echo '#                              Freedom in the Cloud'
echo '#'
echo '# License'
echo '# ======='
echo '#'
echo "# Copyright (C) $(date +%Y) ${your_name} <${your_email}>"
echo '#'
echo '# This program is free software: you can redistribute it and/or modify'
echo '# it under the terms of the GNU Affero General Public License as published by'
echo '# the Free Software Foundation, either version 3 of the License, or'
echo '# (at your option) any later version.'
echo '#'
echo '# This program is distributed in the hope that it will be useful,'
echo '# but WITHOUT ANY WARRANTY; without even the implied warranty of'
echo '# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the'
echo '# GNU Affero General Public License for more details.'
echo '#'
echo '# You should have received a copy of the GNU Affero General Public License'
echo '# along with this program.  If not, see <http://www.gnu.org/licenses/>.'
echo ''
echo "VARIANTS='full full-vim'"
echo ''
echo 'IN_DEFAULT_INSTALL=0'
echo "SHOW_ON_ABOUT=${SHOW_ON_ABOUT}"
if [ $app_onion_only ]; then
    echo 'SHOW_ICANN_ADDRESS_ON_ABOUT=0'
fi
echo ''
echo "${app_name_upper}_DOMAIN_NAME="
echo "${app_name_upper}_CODE="
if [ "$app_port" ]; then
    echo "${app_name_upper}_PORT=$app_port"
fi
echo "${app_name_upper}_ONION_PORT=$(( ( RANDOM % 1000 )  + 9010 ))"
if [ "$app_repo" ]; then
    echo "${app_name_upper}_REPO=\"${app_repo}\""
    echo "${app_name_upper}_COMMIT='${app_repo_commit}'"
fi
if [ $app_daemon ]; then
    if [ ! "$app_port_internal" ]; then
        echo "${app_name_upper}_PORT_INTERNAL=TODO"
    else
        echo "${app_name_upper}_PORT_INTERNAL=$app_port_internal"
    fi
fi
echo ''
echo $'# These parameters are used by the FreedomBox mobile app'
echo "${app_name_upper}_SHORT_DESCRIPTION="
echo "${app_name_upper}_DESCRIPTION="
echo "${app_name_upper}_MOBILE_APP_URL="
echo ''
echo "${app_name}_variables=(ONION_ONLY"
echo "                       ${app_name_upper}_DOMAIN_NAME"
echo "                       ${app_name_upper}_CODE"
echo '                       DDNS_PROVIDER'
echo "                       MY_USERNAME)"
echo ''
echo "function logging_on_${app_name} {"
echo "    echo -n ''"
echo "}"
echo ''
echo "function logging_off_${app_name} {"
echo "    echo -n ''"
echo '}'
echo ''
echo "function remove_user_${app_name} {"
echo "    remove_username=\"\$1\""
echo ''
echo "    \"\${PROJECT_NAME}-pass\" -u \"\$remove_username\" --rmapp ${app_name}"
echo '}'
echo ''
echo "function add_user_${app_name} {"
echo "    new_username=\"\$1\""
echo "    new_user_password=\"\$2\""
echo ''
echo "    \"\${PROJECT_NAME}-pass\" -u \"\$new_username\" -a ${app_name} -p \"\$new_user_password\""
echo "    echo '0'"
echo '}'
echo ''
echo "function install_interactive_${app_name} {"
if [ ! $app_onion_only ]; then
    if [ $app_webui ]; then
        echo "    if [ ! \"\$ONION_ONLY\" ]; then"
        echo "        ONION_ONLY='no'"
        echo '    fi'
        echo ''
        echo "    if [[ \"\$ONION_ONLY\" != \"no\" ]]; then"
        echo "        ${app_name_upper}_DOMAIN_NAME='${app_name}.local'"
        echo "        write_config_param \"${app_name_upper}_DOMAIN_NAME\" \"\$${app_name_upper}_DOMAIN_NAME\""
        echo '    else'
        echo "        interactive_site_details \"${app_name}\" \"${app_name_upper}_DOMAIN_NAME\" \"${app_name_upper}_CODE\""
        echo '    fi'
    else
        echo "    echo -n ''"
    fi
else
    echo "    echo -n ''"
fi
echo '    APP_INSTALLED=1'
echo '}'
echo ''
echo "function change_password_${app_name} {"
echo "    curr_username=\"\$1\""
echo "    new_user_password=\"\$2\""
if [ $app_webui ]; then
    echo ''
    echo "    read_config_param '${app_name_upper}_DOMAIN_NAME'"
fi
echo ''
echo "    \"\${PROJECT_NAME}-pass\" -u \"\$curr_username\" -a ${app_name} -p \"\$new_user_password\""
echo '}'

if [[ "$database_type" == "mariadb" || "$database_type" == "mysql" || "$database_type" == "postgres"* || "$database_type" == "mongo"* ]]; then
    echo ''
    echo "function ${app_name}_create_database {"
    echo "    if [ -f \"\$IMAGE_PASSWORD_FILE\" ]; then"
    echo "        ${app_name_upper}_ADMIN_PASSWORD=\"\$(printf \"%d\" \"\$(cat \"$IMAGE_PASSWORD_FILE\")\")\""
    echo '    else'
    echo "        if [ ! \"\$${app_name_upper}_ADMIN_PASSWORD\" ]; then"
    echo "            ${app_name_upper}_ADMIN_PASSWORD=\$(create_password \"\${MINIMUM_PASSWORD_LENGTH}\")"
    echo '        fi'
    echo '    fi'
    echo "    if [ ! \"\$${app_name_upper}_ADMIN_PASSWORD\" ]; then"
    echo '        return'
    echo '    fi'
    echo ''
    if [[ "$database_type" = "mysql" || "$database_type" = "mariadb" ]]; then
        echo "    create_database ${app_name} \"\$${app_name_upper}_ADMIN_PASSWORD\" \"\$MY_USERNAME\""
    fi
    if [[ "$database_type" = "mongo"* ]]; then
        echo "    create_database_mongodb ${app_name} \"\$${app_name_upper}_ADMIN_PASSWORD\" \"\$MY_USERNAME\""
    fi
    if [[ "$database_type" == "postgres"* ]]; then
        echo '    systemctl restart postgresql'
        echo "    run_system_query_postgresql \"CREATE USER peertube WITH PASSWORD '\$${app_name_upper}_ADMIN_PASSWORD';\""
        echo "    run_system_query_postgresql \"CREATE DATABASE ${app_name} OWNER ${app_name};\""
        echo "    run_system_query_postgresql \"GRANT ALL PRIVILEGES ON DATABASE ${app_name} to ${app_name};\""
        echo "    run_system_query_postgresql \"set statement_timeout to 40000;\""
    fi
    echo '}'
fi
echo ''
echo "function reconfigure_${app_name} {"
echo '    # This is used if you need to switch identity. Dump old keys and generate new ones'
echo "    echo -n ''"
echo '}'
echo ''
echo "function configure_interactive_${app_name} {"
echo '    W=(1 $"Option 1"'
echo '       2 $"Option 2")'
echo ''
echo '    while true'
echo '    do'
echo '        # shellcheck disable=SC2068'
echo "        selection=\$(dialog --backtitle \$\"Freedombone Administrator Control Panel\" --title \$\"${app_name}\" --menu \$\"Choose an operation, or ESC for main menu:\" 14 70 3 \"\${W[@]}\" 3>&2 2>&1 1>&3)"
echo ''
echo "        if [ ! \"\$selection\" ]; then"
echo '           break'
echo '        fi'
echo "        case \$selection in"
echo '            1) # call some function for option 1'
echo '               ;;'
echo '            2) # call some function for option 2'
echo '               ;;'
echo '        esac'
echo '    done'
echo '}'
echo ''
echo "function upgrade_${app_name} {"
if [ ! "$app_repo" ]; then
    echo "echo -n ''"
else
    echo "    CURR_${app_name_upper}_COMMIT=\$(get_completion_param \"${app_name} commit\")"
    echo "    if [[ \"\$CURR_${app_name_upper}_COMMIT\" == \"\$${app_name_upper}_COMMIT\" ]]; then"
    echo '        return'
    echo '    fi'
    if [ $app_webui ]; then
        echo ''
        echo "    if grep -q \"${app_name} domain\" \"\$COMPLETION_FILE\"; then"
        echo "        ${app_name_upper}_DOMAIN_NAME=\$(get_completion_param \"${app_name} domain\")"
        echo '    fi'
    fi
    echo ''
    echo '    # update to the next commit'
    if [ ! "$app_dir" ]; then
        echo "    set_repo_commit \"/var/www/\$${app_name_upper}_DOMAIN_NAME/htdocs\" \"${app_name} commit\" \"\$${app_name_upper}_COMMIT\" \"\$${app_name_upper}_REPO\""
        echo "    chown -R www-data:www-data \"/var/www/\${${app_name_upper}_DOMAIN_NAME}/htdocs\""
    else
        echo "    set_repo_commit \"${app_dir}\" \"${app_name} commit\" \"\$${app_name_upper}_COMMIT\" \"\$${app_name_upper}_REPO\""
        echo "    chown -R ${app_name}:${app_name} \"${app_dir}\""
    fi
    if [ $app_daemon ]; then
        echo "    systemctl restart ${app_name}"
    fi
fi
echo '}'
echo ''
echo "function backup_local_${app_name} {"
if [ $app_webui ]; then
    echo "    ${app_name_upper}_DOMAIN_NAME='${app_name}'"
    echo "    if grep -q \"${app_name} domain\" \"\$COMPLETION_FILE\"; then"
    echo "        ${app_name_upper}_DOMAIN_NAME=\$(get_completion_param \"${app_name} domain\")"
    echo '    fi'
    echo ''
fi
if [ ! "$app_dir" ]; then
    echo "    source_directory=/var/www/\${${app_name_upper}_DOMAIN_NAME}/htdocs"
else
    echo "    source_directory=${app_dir}"
fi
if [ $app_webui ]; then
    echo ''
    echo "    suspend_site \"\${${app_name_upper}_DOMAIN_NAME}\""
fi
if [ $app_daemon ]; then
    echo ''
    echo "    systemctl stop ${app_name}"
fi
echo ''
echo "    dest_directory=${app_name}"
echo "    backup_directory_to_usb \"\$source_directory\" \$dest_directory"
echo ''
if [[ "$database_type" == "mariadb" || "$database_type" == "mysql" ]]; then
    echo "    backup_database_to_usb ${app_name}"
    echo ''
fi
if [[ "$database_type" == "postgres"* ]]; then
    echo '    USE_POSTGRESQL=1'
    echo "    backup_database_to_usb ${app_name}"
    echo ''
fi
if [[ "$database_type" == "mongo"* ]]; then
    echo '    USE_MONGODB=1'
    echo "    backup_database_to_usb ${app_name}"
    echo ''
fi
if [ $app_webui ]; then
    echo '    restart_site'
fi
if [ $app_daemon ]; then
    echo "    systemctl start ${app_name}"
fi
echo '}'
echo ''
echo "function restore_local_${app_name} {"
if [ $app_webui ]; then
    echo "    if ! grep -q \"${app_name} domain\" \"\$COMPLETION_FILE\"; then"
    echo '        return'
    echo '    fi'
    echo "    ${app_name_upper}_DOMAIN_NAME=\$(get_completion_param \"${app_name} domain\")"
    echo "    if [ ! \"\$${app_name_upper}_DOMAIN_NAME\" ]; then"
    echo "        return"
    echo "    fi"
fi
if [ $app_webui ]; then
    echo "    suspend_site \"\${${app_name_upper}_DOMAIN_NAME}\""
fi
if [ $app_daemon ]; then
    echo "    systemctl stop ${app_name}"
    echo ''
fi
echo "    temp_restore_dir=/root/temp${app_name}"
if [ ! "$app_dir" ]; then
    echo "    ${app_name}_dir=/var/www/\${${app_name_upper}_DOMAIN_NAME}/htdocs"
else
    echo "    ${app_name}_dir=${app_dir}"
fi
echo ''
if [[ "$database_type" == "mariadb" || "$database_type" == "mysql" ]]; then
    echo "    ${app_name}_create_database"
    echo ''
    echo "    restore_database ${app_name}"
    echo "    if [ -d \$temp_restore_dir ]; then"
    echo "        rm -rf \$temp_restore_dir"
    echo '    fi'
    echo ''
fi
if [[ "$database_type" == "postgres"* ]]; then
    echo "    ${app_name}_create_database"
    echo ''
    echo '    USE_POSTGRESQL=1'
    echo "    restore_database ${app_name}"
    echo "    if [ -d \$temp_restore_dir ]; then"
    echo "        rm -rf \$temp_restore_dir"
    echo '    fi'
    echo ''
fi
if [[ "$database_type" == "mongo"* ]]; then
    echo "    ${app_name}_create_database"
    echo ''
    echo '    USE_MONGODB=1'
    echo "    restore_database ${app_name}"
    echo "    if [ -d \$temp_restore_dir ]; then"
    echo "        rm -rf \$temp_restore_dir"
    echo '    fi'
    echo ''
fi
echo "    restore_directory_from_usb \$temp_restore_dir ${app_name}"
echo "    if [ -d \$temp_restore_dir ]; then"
echo "        if [ -d \"\$temp_restore_dir\$${app_name}_dir\" ]; then"
echo "            cp -rp \"\$temp_restore_dir\$${app_name}_dir\"/* \"\$${app_name}_dir\"/"
echo '        else'
echo "            if [ ! -d \"\$${app_name}_dir\" ]; then"
echo "                mkdir \"\$${app_name}_dir\""
echo '            fi'
echo "            cp -rp \"\$temp_restore_dir\"/* \"\$${app_name}_dir\"/"
echo '        fi'
if [[ ! "$app_dir" ]]; then
    echo "        chown -R www-data:www-data \"\$${app_name}_dir\""
else
    echo "        chown -R ${app_name}:${app_name} \"\$${app_name}_dir\""
fi
echo "        rm -rf \$temp_restore_dir"
echo '    fi'
if [ $app_daemon ]; then
    echo "    systemctl start ${app_name}"
    echo ''
fi
if [ $app_webui ]; then
    echo '    restart_site'
fi
echo '}'
echo ''
echo "function backup_remote_${app_name} {"
if [ $app_webui ]; then
    echo "    ${app_name_upper}_DOMAIN_NAME='${app_name}'"
    echo "    if grep -q \"${app_name} domain\" \"\$COMPLETION_FILE\"; then"
    echo "        ${app_name_upper}_DOMAIN_NAME=\$(get_completion_param \"${app_name} domain\")"
    echo '    fi'
    echo ''
fi
if [ ! "$app_dir" ]; then
    echo "    source_directory=/var/www/\${${app_name_upper}_DOMAIN_NAME}/htdocs"
else
    echo "    source_directory=${app_dir}"
fi
if [ $app_webui ]; then
    echo ''
    echo "    suspend_site \"\${${app_name_upper}_DOMAIN_NAME}\""
fi
if [ $app_daemon ]; then
    echo "    systemctl stop ${app_name}"
fi
echo ''
echo "    dest_directory=${app_name}"
echo "    backup_directory_to_friend \"\$source_directory\" \$dest_directory"
if [[ "$database_type" == "mariadb" || "$database_type" == "mysql" ]]; then
    echo "    backup_database_to_friend ${app_name}"
    echo ''
fi
if [[ "$database_type" == "postgres"* ]]; then
    echo '    USE_POSTGRESQL=1'
    echo "    backup_database_to_friend ${app_name}"
    echo ''
fi
if [[ "$database_type" == "mongo"* ]]; then
    echo '    USE_MONGODB=1'
    echo "    backup_database_to_friend ${app_name}"
    echo ''
fi
if [ $app_daemon ]; then
    echo ''
    echo "    systemctl start ${app_name}"
fi
if [ $app_webui ]; then
    echo ''
    echo '    restart_site'
fi
echo '}'
echo ''
echo "function restore_remote_${app_name} {"
if [ $app_webui ]; then
    echo "    if ! grep -q \"${app_name} domain\" \"\$COMPLETION_FILE\"; then"
    echo '        return'
    echo '    fi'
    echo "    ${app_name_upper}_DOMAIN_NAME=\$(get_completion_param \"${app_name} domain\")"
    echo "    if [ ! \"\$${app_name_upper}_DOMAIN_NAME\" ]; then"
    echo "        return"
    echo "    fi"
fi
if [ $app_webui ]; then
    echo "    suspend_site \"\${${app_name_upper}_DOMAIN_NAME}\""
fi
if [ $app_daemon ]; then
    echo "    systemctl stop ${app_name}"
    echo ''
fi
echo "    temp_restore_dir=/root/temp${app_name}"
if [ ! "$app_dir" ]; then
    echo "    ${app_name}_dir=/var/www/\${${app_name_upper}_DOMAIN_NAME}/htdocs"
else
    echo "    ${app_name}_dir=${app_dir}"
fi
echo ''
if [[ "$database_type" == "mariadb" || "$database_type" == "mysql" ]]; then
    echo "    ${app_name}_create_database"
    echo ''
    echo "    restore_database_from_friend ${app_name}"
    echo "    if [ -d \"\$temp_restore_dir\" ]; then"
    echo "        rm -rf \$temp_restore_dir"
    echo '    fi'
    echo ''
fi
if [[ "$database_type" == "postgres"* ]]; then
    echo "    ${app_name}_create_database"
    echo ''
    echo '    USE_POSTGRESQL=1'
    echo "    restore_database_from_friend ${app_name}"
    echo "    if [ -d \"\$temp_restore_dir\" ]; then"
    echo "        rm -rf \$temp_restore_dir"
    echo '    fi'
    echo ''
fi
if [[ "$database_type" == "mongo"* ]]; then
    echo "    ${app_name}_create_database"
    echo ''
    echo '    USE_MONGODB=1'
    echo "    restore_database_from_friend ${app_name}"
    echo "    if [ -d \"\$temp_restore_dir\" ]; then"
    echo "        rm -rf \$temp_restore_dir"
    echo '    fi'
    echo ''
fi
echo "    restore_directory_from_friend \$temp_restore_dir ${app_name}"
echo "    if [ -d \$temp_restore_dir ]; then"
echo "        if [ -d \"\$temp_restore_dir\$${app_name}_dir\" ]; then"
echo "            cp -rp \"\$temp_restore_dir\$${app_name}_dir\"/* \"\$${app_name}_dir\"/"
echo '        else'
echo "            if [ ! -d \"\$${app_name}_dir\" ]; then"
echo "                mkdir \"\$${app_name}_dir\""
echo '            fi'
echo "            cp -rp \$temp_restore_dir/* \"\$${app_name}_dir\"/"
echo '        fi'
if [[ ! "$app_dir" ]]; then
    echo "        chown -R www-data:www-data \"\$${app_name}_dir\""
else
    echo "        chown -R ${app_name}:${app_name} \"\$${app_name}_dir\""
fi
echo "        rm -rf \$temp_restore_dir"
echo '    fi'
if [ $app_daemon ]; then
    echo "    systemctl start ${app_name}"
    echo ''
fi
if [ $app_webui ]; then
    echo '    restart_site'
fi
echo '}'
echo ''
echo "function remove_${app_name} {"
if [ $app_webui ]; then
    echo "    nginx_dissite \"\$${app_name_upper}_DOMAIN_NAME\""
    echo "    remove_certs \"\$${app_name_upper}_DOMAIN_NAME\""
    echo ''
fi
if [ $app_daemon ]; then
    echo "    if [ -f /etc/systemd/system/${app_name}.service ]; then"
    echo "        systemctl stop ${app_name}"
    echo "        systemctl disable ${app_name}"
    echo "        rm /etc/systemd/system/${app_name}.service"
    echo '    fi'
    echo "    userdel -r ${app_name}"
fi
if [ "$app_nodeapp" ]; then
    echo "    npm uninstall -g ${app_nodeapp}"
    echo ''
fi
if [[ "$app_node" == 'yes' ]]; then
    echo "    remove_nodejs ${app_name}"
    echo ''
fi
if [ $app_webui ]; then
    echo ''
    echo "    if [ -d \"/var/www/\$${app_name_upper}_DOMAIN_NAME\" ]; then"
    echo "        rm -rf \"/var/www/\$${app_name_upper}_DOMAIN_NAME\""
    echo '    fi'
    echo "    if [ -f \"/etc/nginx/sites-available/\$${app_name_upper}_DOMAIN_NAME\" ]; then"
    echo "        rm \"/etc/nginx/sites-available/\$${app_name_upper}_DOMAIN_NAME\""
    echo '    fi'
fi
if [[ "$database_type" == "mariadb" || "$database_type" == "mysql" ]]; then
    echo "    drop_database ${app_name}"
fi
if [[ "$database_type" == "postgres"* ]]; then
    echo "    drop_database_postgresql ${app_name}"
fi
if [[ "$database_type" == "mongo"* ]]; then
    echo "    drop_database_mongodb ${app_name}"
fi
echo "    remove_onion_service ${app_name} \"\${${app_name_upper}_ONION_PORT}\""
echo "    if grep -q \"${app_name}\" /etc/crontab; then"
echo "        sed -i \"/${app_name}/d\" /etc/crontab"
echo '    fi'
echo "    remove_app ${app_name}"
echo "    remove_completion_param install_${app_name}"
echo "    sed -i '/${app_name}/d' \"\$COMPLETION_FILE\""
if [ "$app_port" ]; then
    echo ''
    echo "    firewall_remove ${app_port} tcp"
fi
if [ $app_webui ]; then
    echo ''
    echo "    remove_ddns_domain \"\$${app_name_upper}_DOMAIN_NAME\""
fi
if [ "$snap_packages" ]; then
    echo ''
    echo "    snap remove ${snap_packages}"
fi
echo '}'
echo ''
echo "function install_${app_name} {"
if [ "$debian_packages" ]; then
    echo "    apt-get -qy install ${debian_packages}"
    echo ''
fi
if [ "$snap_packages" ]; then
    echo '    apt-get -qy install snapd'
    echo "    snap install ${snap_packages}"
    echo ''
fi
if [[ "$database_type" == "mariadb" || "$database_type" == "mysql" ]]; then
    echo '    install_mariadb'
    echo ''
    echo '    get_mariadb_password'
    echo ''
fi
if [[ "$database_type" == "postgres"* ]]; then
    echo '    install_postgresql'
    echo ''
fi
if [[ "$database_type" == "mongo"* ]]; then
    echo '    install_mongodb'
    echo ''
fi
if [[ "$app_node" == 'yes' ]]; then
    echo "    install_nodejs ${app_name}"
fi
if [ "$app_nodeapp" ]; then
    echo "    npm install -g ${app_nodeapp}"
fi
if [[ "$app_php" == 'yes' ]]; then
    echo '    apt-get -yq install php-gettext php-curl php-gd php-mysql git curl'
    echo '    apt-get -yq install memcached php-memcached php-intl exiftool libfcgi0ldbl'
    echo ''
fi

if [ $app_webui ]; then
    echo "    if [ ! \"\$${app_name_upper}_DOMAIN_NAME\" ]; then"
    echo "        echo \$'No domain name was given'"
    echo '        exit 3568356'
    echo '    fi'
    echo ''
    echo "    if [ -d \"/var/www/\$${app_name_upper}_DOMAIN_NAME/htdocs\" ]; then"
    echo "        rm -rf \"/var/www/\$${app_name_upper}_DOMAIN_NAME/htdocs\""
    echo '    fi'
fi

if [ "$app_repo" ]; then
    echo "    if [ -d /repos/${app_name} ]; then"
    if [ $app_webui ]; then
        echo "        mkdir \"/var/www/\$${app_name_upper}_DOMAIN_NAME/htdocs\""
    fi
    if [ ! "$app_dir" ]; then
        echo "        cp -r -p /repos/${app_name}/. \"/var/www/\$${app_name_upper}_DOMAIN_NAME/htdocs\""
        echo "        cd \"/var/www/\$${app_name_upper}_DOMAIN_NAME/htdocs\" || exit 324687356"
    else
        echo "        cp -r -p /repos/${app_name}/. \"${app_dir}\""
        echo "        cd \"${app_dir}\" || exit 36487365"
    fi
    echo '        git pull'
    echo '    else'
    if [ ! "$app_dir" ]; then
        echo "        git_clone \"\$${app_name_upper}_REPO\" \"/var/www/\$${app_name_upper}_DOMAIN_NAME/htdocs\""
    else
        echo "        git_clone \"\$${app_name_upper}_REPO\" \"${app_dir}\""
    fi
    echo '    fi'
    echo ''
    if [ ! "$app_dir" ]; then
        echo "    if [ ! -d \"/var/www/\$${app_name_upper}_DOMAIN_NAME/htdocs\" ]; then"
    else
        echo "    if [ ! -d \"${app_dir}\" ]; then"
    fi
    echo "        echo \$'Unable to clone ${app_name} repo'"
    echo '        exit 87525'
    echo '    fi'
    echo ''
else
    echo "    mkdir -p \"/var/www/\$${app_name_upper}_DOMAIN_NAME/htdocs\""
    if [ "$app_dir" ]; then
        echo "    mkdir \"${app_dir}\""
    fi
fi
if [ ! "$app_dir" ]; then
    echo "    cd \"/var/www/\$${app_name_upper}_DOMAIN_NAME/htdocs\" || exit 36587356"
else
    echo "    cd \"${app_dir}\" || exit 3463754637"
fi
if [ "$app_repo" ]; then
    echo "    git checkout \"\$${app_name_upper}_COMMIT\" -b \"\$${app_name_upper}_COMMIT\""
    echo "    set_completion_param \"${app_name} commit\" \"\$${app_name_upper}_COMMIT\""
fi
if [ $app_webui ]; then
    echo ''
    echo "    chmod g+w \"/var/www/\$${app_name_upper}_DOMAIN_NAME/htdocs\""
    echo "    chown -R www-data:www-data \"/var/www/\$${app_name_upper}_DOMAIN_NAME/htdocs\""
fi

if [[ "$database_type" == "mariadb" || "$database_type" == "mysql" || "$database_type" == "postgres"* || "$database_type" == "mongo"*  ]]; then
    echo ''
    echo "    ${app_name}_create_database"
fi
if [ $app_webui ]; then
    echo ''
    echo "    add_ddns_domain \"\$${app_name_upper}_DOMAIN_NAME\""
fi
echo ''
echo "    ${app_name_upper}_ONION_HOSTNAME=\$(add_onion_service ${app_name} 80 \"\${${app_name_upper}_ONION_PORT}\")"

if [ $app_webui ]; then
    echo ''
    echo "    ${app_name}_nginx_site=/etc/nginx/sites-available/\$${app_name_upper}_DOMAIN_NAME"

    if [ ! $app_onion_only ]; then
        echo "    if [[ \"\$ONION_ONLY\" == \"no\" ]]; then"
        if [[ "$app_php" == 'yes' ]]; then
            echo "        nginx_http_redirect \"\$${app_name_upper}_DOMAIN_NAME\" \"index index.php\""
        else
            echo "        nginx_http_redirect \"\$${app_name_upper}_DOMAIN_NAME\" \"index index.html\""
        fi
        echo "        { echo 'server {';"
        echo "          echo '  listen 443 ssl;';"
        echo "          echo '  #listen [::]:443 ssl;';"
        echo "          echo \"  server_name \$${app_name_upper}_DOMAIN_NAME;\";"
        echo "          echo ''; } >> \"\$${app_name}_nginx_site\""
        echo "        nginx_compress \"\$${app_name_upper}_DOMAIN_NAME\""
        echo "        echo '' >> \"\$${app_name}_nginx_site\""
        echo "        echo '  # Security' >> \"\$${app_name}_nginx_site\""
        echo "        nginx_ssl \"\$${app_name_upper}_DOMAIN_NAME\""
        echo ''
        echo "        nginx_security_options \"\$${app_name_upper}_DOMAIN_NAME\""
        echo ''
        echo "        { echo '  add_header Strict-Transport-Security max-age=15768000;';"
        echo "          echo '';"
        echo "          echo '    access_log /dev/null;';"
        echo "          echo '    error_log /dev/null;';"
        echo "          echo '';"
        echo "          echo \"    root /var/www/\$${app_name_upper}_DOMAIN_NAME/htdocs;\";"
        echo "          echo '';"
        if [[ "$app_php" == 'yes' ]]; then
            echo "          echo '  index index.php;';"
            echo "          echo '  location ~ \\.php {';"
            echo "          echo '    include snippets/fastcgi-php.conf;';"
            echo "          echo '    fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;';"
            echo "          echo '    fastcgi_read_timeout 30;';"
            echo "          echo '    fastcgi_param HTTPS on;';"
            echo "          echo '  }';"
            echo "          echo '';"
        else
            echo "        echo '  index index.html;';"
        fi
        echo "          echo '  # Location';"
        echo "          echo '  location / {'; } >> \"\$${app_name}_nginx_site\""
        echo "        nginx_limits \"\$${app_name_upper}_DOMAIN_NAME\" '15m'"
        if [ ! $app_daemon ]; then
            if [[ "$app_php" != 'yes' ]]; then
                echo "        { echo \"    try_files \\\$uri \\\$uri/ /index.html;\";"
            else
                echo "        { echo \"    try_files \\\$uri \\\$uri/ /index.php?\\\$args;\";"
            fi
        else
            echo "        { echo \"    proxy_pass http://localhost:\$${app_name_upper}_PORT_INTERNAL;\";"
        fi
        echo "          echo '  }';"
        echo "          echo '}'; } >> \"\$${app_name}_nginx_site\""
        echo '    else'
        echo "        echo -n '' > \"\$${app_name}_nginx_site\""
        echo '    fi'
    else
        echo "    echo -n '' > \"\$${app_name}_nginx_site\""
    fi
    echo "    { echo 'server {';"
    echo "      echo \"    listen 127.0.0.1:\$${app_name_upper}_ONION_PORT default_server;\";"
    echo "      echo \"    server_name \$${app_name_upper}_ONION_HOSTNAME;\";"
    echo "      echo ''; } >> \"\$${app_name}_nginx_site\""
    echo "    nginx_compress \"\$${app_name_upper}_DOMAIN_NAME\""
    echo "    echo '' >> \"\$${app_name}_nginx_site\""
    echo "    nginx_security_options \"\$${app_name_upper}_DOMAIN_NAME\""
    echo "    { echo '';"
    echo "      echo '    access_log /dev/null;';"
    echo "      echo '    error_log /dev/null;';"
    echo "      echo '';"
    echo "      echo \"    root /var/www/\$${app_name_upper}_DOMAIN_NAME/htdocs;\";"
    echo "      echo '';"
    if [[ "$app_php" == 'yes' ]]; then
        echo "      echo '  index index.php;';"
        echo "      echo '  location ~ \\.php {';"
        echo "      echo '    include snippets/fastcgi-php.conf;';"
        echo "      echo '    fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;';"
        echo "      echo '    fastcgi_read_timeout 30;';"
        echo "      echo '    fastcgi_param HTTPS off;';"
        echo "      echo '  }';"
        echo "      echo '';"
    else
        echo "        echo '  index index.html;';"
    fi
    echo "      echo '  # Location';"
    echo "      echo '  location / {'; } >> \"\$${app_name}_nginx_site\""
    echo "    nginx_limits \"\$${app_name_upper}_DOMAIN_NAME\" '15m'"
    if [ ! $app_daemon ]; then
        if [[ "$app_php" != 'yes' ]]; then
            echo "    { echo \"    try_files \\\$uri \\\$uri/ index.html;\";"
        else
            echo "    { echo \"    try_files \\\$uri \\\$uri/ index.php?\\\$args;\";"
        fi
    else
        echo "      { echo \"    proxy_pass http://localhost:\$${app_name_upper}_PORT_INTERNAL;\";"
    fi
    echo "      echo '  }';"
    echo "      echo '}'; } >> \"\$${app_name}_nginx_site\""
    if [[ "$app_php" == 'yes' ]]; then
        echo ''
        echo '    configure_php'
    fi
fi

if [ $app_daemon ]; then
    echo ''
    if [[ ! "$app_dir" ]]; then
        echo "    adduser --system --home=\"TODO_PATH_TO_INSTALL\" --group ${app_name}"
    else
        echo "    adduser --system --home=\"${app_dir}\" --group ${app_name}"
    fi
    echo ''
    echo "    { echo '[Unit]';"
    echo "      echo 'Description=${app_name}';"
    echo "      echo 'After=syslog.target';"
    echo "      echo 'After=network.target';"
    echo "      echo \"Documentation=\$${app_name_upper}_REPO\";";
    echo "      echo '';"
    echo "      echo '[Service]';"
    echo "      echo 'Type=simple';"
    echo "      echo 'User=${app_name}';"
    echo "      echo 'Group=${app_name}';"
    if [ ! "$app_dir" ]; then
        echo "      echo 'WorkingDirectory=TODO';"
    else
        echo "      echo 'WorkingDirectory=${app_dir}';"
    fi
    if [[ ! "$app_nodeapp" ]]; then
        if [ ! $app_node ]; then
            echo "      echo 'ExecStart=TODO';"
        else
            echo "      echo 'ExecStart=/usr/local/bin/npm start';"
            echo "      echo 'ExecStop=/usr/local/bin/npm stop';"
        fi
    else
        echo "      echo 'ExecStart=/usr/local/bin/node $app_nodeapp';"
        echo "      echo 'Environment=NODE_ENV=production';"
    fi
    echo "      echo 'Environment=USER=${app_name}';"
    echo "      echo 'Restart=always';"
    echo "      echo 'StandardError=syslog';"
    echo "      echo '';"
    echo "      echo '[Install]';"
    echo "      echo 'WantedBy=multi-user.target'; } > \"/etc/systemd/system/${app_name}.service\""
    echo "    systemctl enable ${app_name}"
    if [ "$app_dir" ]; then
        echo "    chown -R ${app_name}:${app_name} \"${app_dir}\""
    fi
    echo "    systemctl start ${app_name}"
fi
if [ $app_webui ]; then
    if [ ! $app_onion_only ]; then
        echo ''
        echo "    create_site_certificate \"\$${app_name_upper}_DOMAIN_NAME\" 'yes'"
    fi
    echo ''
    echo "    nginx_ensite \"\$${app_name_upper}_DOMAIN_NAME\""
fi
if [[ "$database_type" == "mariadb" || "$database_type" == "mysql" ]]; then
    echo ''
    echo '    systemctl restart mariadb'
fi
if [ $app_webui ]; then
    if [[ "$app_php" == 'yes' ]]; then
        echo ''
        echo '    systemctl restart php7.0-fpm'
    fi
    echo ''
    echo '    systemctl restart nginx'
fi
echo ''
echo "    \"\${PROJECT_NAME}-pass\" -u \"\$MY_USERNAME\" -a ${app_name} -p \"\$${app_name_upper}_ADMIN_PASSWORD\""
if [ $app_webui ]; then
    echo "    set_completion_param \"${app_name} domain\" \"\$${app_name_upper}_DOMAIN_NAME\""
fi
if [ "$app_port" ]; then
    echo ''
    echo "    firewall_add ${app_name} ${app_port} tcp"
fi
echo ''
echo '    APP_INSTALLED=1'
echo '}'
echo ''
echo '# NOTE: deliberately there is no "exit 0"'